With a Tension Pneumothorax, Which Factors Contribute to Severe Hypoxia

Multiple Choice

With a tension pneumothorax, which factors contribute to severe hypoxia?

A) Decreasing compression of the inferior vena cava
B) More air leaving the pleural cavity on expiration than entering with inspiration
C) Shift of the mediastinal contents toward the affected lung
D) Continually increasing pressure on the unaffected lung